Illegal access error at runtime

Question

Hi,
I am getting an illegal access error while trying to call a method.
- Class1 tries to call method on Class2.
- Method has package visibility
- Both classes are in same package.
- Class1 is being invoked by a class in a Web Application which is
in a completely different package. Class1 gets invoked properly
and then instantiates Class2. It then tries to call the method on
Class2.
- Compiler is compiling successfully i.e. no compile time errors
Any clues?
Env:
JDK 1.4.2_01
App Server Tomcat 4.0.6
Thanks
Reg
Aashish

Answer 1

Hi,
I am getting an illegal access error while trying to
call a method.
- Class1 tries to call method on Class2.
- Method has package visibility
- Both classes are in same package.
- Class1 is being invoked by a class in a Web
Application which is
in a completely different package. Class1 gets
s invoked properly
and then instantiates Class2. It then tries to call
l the method on
Class2.
- Compiler is compiling successfully i.e. no compile
time errors
Any clues?
Env:
JDK 1.4.2_01
App Server Tomcat 4.0.6
Thanks
Reg
AashishThe problem is the Class1 and Class2 are being loaded by different classloaders. Because of this, they are considered to be in different packages by the VM, and hence the IllegalAccessError.
To correct this, make sure both classes are only available in a single classloader context. So if these classes are only used by the WebApp, include them in a jar in WEB-INF/lib or WEB-INF/classes..
If yyou need access to these across multiple webapps, or by some other non-webapp classes, place them in the /common/lib directory for Tomcat.
Whatever you do, MAKE SURE THEY AREN'T avaialble in BOTH! Which is what appears to be the problem now.